Australia captain Michael Hooper has praised the "great" work ethic of England's Chris Robshaw ahead of this weekend's meeting at Twickenham.
The 28-year-old has established himself as England's first-choice skipper, although many have questioned certain aspects of his game.
Despite this, Hooper was full of praise for his opposite number, pointing to the Wallabies' 20-13 defeat against the same opposition 12 months ago.
"Robshaw is an absolute pest," he told reporters. "Last year he had a really good performance against us around the ruck, disrupting our ball and made it a really tough night for us around the breakdown.
"I think they have got a good back row and a big, physical forward pack who like to dominate scrums and line-outs. Robshaw's work ethic is great - that's probably the main attribute of a seven, he's got to work and get through a heap of stuff.
"He does that - he's their leader and is a big part of the team regardless. I don't think there's any traditional position any more. If a guy is a good enough player then get him in there is what I say."
England and Australia will also meet at the pool stage of next year's Rugby World Cup.
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